/**
 * @author zowie
 * @dete 2022-
 * @function 
 * @param {number[][]} data
 * @return {string} str
 */


function openOrSenior(data) {
  var str = []
  for (let i = 0; i < data.length; i++) {
    str[i] = ((data[i][0] >= 55) && (data[i][1]) > 7) ? 'Senior' : 'Open'
  }
  return str
}
console.log(openOrSenior([[45, 12], [55, 21], [19, -2], [104, 20]]))
